In the mountains of Tibet, a new weapon is being tested — a weapon that kills based on genetic traits. Two countries race to master this new technology. But what they unleash will change warfare forever. Publishers Weekly hails Brian Nelson’s novel as “a gripping, frighteningly plausible techno-thriller.” New York Times bestselling author Steve Berry offers up this praise: “The danger is unique, and the treachery vast, in this rapid-paced adventure that delivers in equal doses of amazing, yet possible. An intriguing tale that will leave you thinking.”